Advise of programming one of my first programs

[Prasad, Ramit]

> >> The use of eval is dangerous if you are not *completely* sure what is
> >> being passed in. Try using pickle instead:
> >> http://docs.python.org/release/2.5.2/lib/pickle-example.html
> >
> >
> > Um, at least by my understanding, the use of Pickle is also dangerous if
> you
> > are not completely sure what is being passed in:
> 
> Oh goodness yes. pickle is exactly as unsafe as eval is. Try running this
> code:
> 
> from pickle import loads
> loads("c__builtin__\neval\n(c__builtin__\nraw_input\n(S'py>'\ntRtR.")

It might be as dangerous, but which is more likely to cause problems in
real world scenarios?

Ramit


Ramit Prasad | JPMorgan Chase Investment Bank | Currencies Technology
712 Main Street | Houston, TX 77002
work phone: 713 - 216 - 5423

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